WO2004052207A1 - X-ray system - Google Patents
X-ray system Download PDFInfo
- Publication number
- WO2004052207A1 WO2004052207A1 PCT/IB2003/005627 IB0305627W WO2004052207A1 WO 2004052207 A1 WO2004052207 A1 WO 2004052207A1 IB 0305627 W IB0305627 W IB 0305627W WO 2004052207 A1 WO2004052207 A1 WO 2004052207A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- component
- stand
- ray system
- ray
- speed
- Prior art date
Links
- 230000003213 activating effect Effects 0.000 claims abstract description 5
- 230000000007 visual effect Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 241000475699 Euphaedusa digonoptyx comes Species 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4429—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units
- A61B6/4464—Constructional features of apparatus for radiation diagnosis related to the mounting of source units and detector units the source unit or the detector unit being mounted to ceiling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/10—Safety means specially adapted therefor
- A61B6/102—Protection against mechanical damage, e.g. anti-collision devices
- A61B6/105—Braking or locking devices
Definitions
- the invention relates to an X-ray system having at least one component that is shiftable (moveable) or pivotable along at least one traverse path to at least one predeterminable locking position.
- Components of this kind are in particular the moving parts of an X-ray stand such as a ceiling stand, floor stand or wall stand for an X-ray tube or X-ray generator, or the X-ray tube or X-ray generator that is fastened to the X-ray stand in such a way as to be capable of being pivoted and extended or retracted.
- Such components also include the shiftable (moveable) or pivotable top of a patient table and a film cassette that is displaceably or pivotably mounted in the table or table top or on a wall stand.
- Said X-ray stands are generally used in this case to hold the X-ray generator or X-ray tube over the patient table or, in the case of a wall stand, in front of an area for a patient to be positioned in, behind which the film cassette is situated.
- the X-ray tube is displaced and/or pivoted by means of the stand until it has reached the position that is suitable and desired for the exposure.
- a plurality of mechanical locking means are usually arranged along the traverse path.
- the X-ray tube can be displaced in a plane parallel to the ceiling of the room and in the vertical direction, to bring it to a central position opposite an X-ray table.
- a plurality of detectors and a plurality of arresting means by means of which, respectively, the position of the X-ray tube can be detected and the X-ray tube can be arrested in a position.
- an analyzer unit in which is stored positional data relating to the central position of the X-ray table and to a set distance between a focus of the X-ray tube and a photographic exposure system. The unit is also used to compare this positional data with a position sensed by the detectors and to generate an arresting signal when the positional data concerned agrees with the position sensed, and the X-ray tube is thus arrested for an exposure to be made.
- the invention is also intended to provide an X-ray system of the kind detailed in the opening paragraph in which the risk of local changes, as a result of wear, in predetermined locking positions for a component that is to be displaced or pivoted is ruled out.
- an X-ray stand of the kind detailed in the opening paragraph in which, when used, the disadvantages and faults explained above that mechanical locking involves, namely particularly the mechanical vibration of the entire system, distracting noises, and increased wear and the change in the locking positions that it involves, do not occur or are at least substantially reduced.
- the invention is also intended to provide a patient table, particularly for use with an X-ray unit, that has at least one component to be displaced or pivoted, such as for example an appropriate table top or a film cassette, and with which, when used, the disadvantages and faults explained above that mechanical locking involves, namely particularly the mechanical vibration of the entire system, distracting noises, and increased wear and the change in the locking positions that it involves, do not occur or are at least substantially reduced.
- the dependent claims relate to advantageous embodiments of the invention.
- the embodiment dealt with in claim 2 can be used to sense both the position of the at least one locking position and the speed of the component.
- Claim 3 deals with a position-sensing unit that is inexpensive to produce and reliable and accurate in operation.
- the embodiment dealt with in claim 4 can be used to realize a comfortable and easy to implement slow down of the component if the the breaking means should be activated before the compontent has reached the locking position.
- the embodiments dealt with in claims 5 to 7 enable the ease of operation to be considerably increased.
- the embodiment dealt with in claim 8 makes it possible for the component to be arrested in a locking position largely without vibration.
- the embodiments dealt with in claims 9 and 10 make it possible, in a relatively easy way, for the locking positions and other operating parameters to be set or selected by a user.
- Fig. 1 is a diagrammatic side-view of the principal components of an X-ray system according to the invention.
- Fig. 2 is a diagrammatic view of a ceiling or floor stand.
- Fig. 3 is a diagrammatic view of a patient table
- Fig. 4 is a diagrammatic view of a wall stand.
- an X-ray system comprises a ceiling stand 1 by which an X-ray tube 2 or an X-ray generator is held in such a way as to be shiftable (moveable) in relation to a patient table 3 having a film cassette 31 and table top 32.
- the ceiling stand 1 comprises a ceiling-stand rail 11 that is fixed to the ceiling D of a room and on which a ceiling-stand carriage 12 is suspended by means of rollers 121. Situated on the ceiling-stand carriage 12 is a telescopic mounting 13 to which the X-ray tube 2 is fastened and by which the latter can be displaced in the vertical direction. There is also generally a collimator 21 mounted on the X-ray tube 2.
- the ceiling-stand carriage 12 contains a control unit 122 to which are fed the signals from a position-sensing unit 123, which is used to determine the distance between the ceiling-stand carriage 12 and a wall W of the examination room. Also connected to the control unit 122 is a braking means 124 for the ceiling-stand carriage 12.
- the braking means 124 is preferably an electromagnetic brake that is active in the de-energized state, that is to say the ceiling-stand carriage is fixed in relation to the ceiling-stand rail 11 and can be released by feeding current to the brake.
- the braking means 124 may, in general, also be an electrical brake of some other kind and/or a known electromechanical locking means. For example, a magnetic particle clutch or break can be used.
- the braking means 124 and if required the control unit 122 may be so designed that, when the braking means 124 is activated, the ceiling-stand carriage 12 is not halted abruptly but is braked at least sufficiently gently for no unwanted vibrations to occur.
- the control unit 122 is also connected to an audio signal transmitter 125.
- the control unit 122 may be connected via an interface 126 to a communications bus.
- Fig.l there are three positions A, Bx and C indicated by way of example on the ceiling-stand rail 11.
- the center position Bx is a triggering or locking position for the ceiling-stand carriage 12, while the two positions A and C situated laterally thereof define a window in which the triggering or locking position Bx is situated.
- the location of the triggering position Bx and a reference position on the ceiling-stand carriage 12 may each be identified by a visual marker M.
- one or more triggering positions Bx along the rail 11 at which X-ray exposures are to be made have to be set.
- triggering positions Bx depend essentially on the type and size of the patient table 3, its set-up relative to the ceiling-stand rail 11, and the location and displaceability in the patient table 3 of a film cassette 31. Virtually as many triggering positions Bx as desired may be set along the rail 11.
- triggering positions Bx are set by first moving the ceiling-stand carriage 12 to a desired position of this kind manually. The location of this position along the rail 11 is then sensed by the position-sensing unit 123 and stored in the control unit 122.
- the location is preferably determined by measuring the absolute distance between the ceiling-stand carriage 12 and a fixed point of reference such as the nearest wall W of the room.
- the position-sensing unit 123 has for example a laser light source or an acoustic source by which, by the transmission of signals to the adjacent wall and the measurement of their transit time, a distance signal is generated and is fed for analysis to the control unit 122.
- An absolute measurement of this kind has the advantage that the locations of the triggering positions Bx may also be set relatively easily by programming.
- the location may also be sensed by counting a number of increments during the displacement of the ceiling-stand carriage 12 to the desired triggering position by the optical scanning of an incremental scale along the ceiling-stand rail
- a window (A-C) is set about each such position.
- the windows may be of different widths, and the triggering positions Bx also need not necessarily be situated exactly in the centers of the windows.
- the widthwise size of the windows i.e. the distances of points A and C from the position Bx in Fig. 1, is selected essentially as a function of the mass of the ceiling-stand carriage 12 and of the mass of the items connected thereto, in such a way that operation is pleasant in the manner explained below.
- points A and C are stored in turn, preferably in the form of the absolute distance from a fixed point of reference as explained above, it being possible for this distance to be calculated, from the location of the relevant triggering position Bx and from the width selected for the window, for example by software that is run in a microprocessor unit (once the window width has been entered).
- the X-ray system can be put into operation.
- the process that takes place in connection with the positioning of the X-ray tube 2, which process is described below, is preferably performed by a software program and by a microprocessor unit that is for example part of the control unit 122.
- the X-ray tube 2 is displaced manually in the horizontal direction by the operator to one of the triggering positions Bx in which an X-ray exposure is to be made.
- the positioning-sensing unit 123 transmits the distance signal continuously to the control unit 122.
- the instantaneous location is determined from this in the control unit 122 and by comparison with a previous, stored location the speed of the ceiling-stand carriage 12 is also calculated.
- the instantaneous speed of the ceiling-stand carriage 12 is compared with a limiting value, which was for example entered in the control unit 122 at the same time as the triggering positions and the widths of the windows were set before the X-ray system was put into operation for the first time. If the speed on entering the window A-C and before reaching the triggering position Bx is below the limiting value or drops below the limiting value, the signal transmitter 125 is driven by the control unit 122 in such a way that it generates a steady signal tone for example.
- the control unit 122 activates the brake 124 so that the ceiling-stand carriage 12 is located (i.e. comes to a gentle halt) at the triggering position. At the same time the signal tone is switched off again.
- the stop distance or stop time could be increased by activating the breaking means already before the ceiling-stand carriage 12 has reached the trigger position Bx. Therefore, if the speed of the ceiling-stand carriage 12 on entering the window A-C and before reaching the triggering position Bx is below the limiting value or drops below the limiting value, the control unit 122 controls (i.e. with a pulse-with modulation) the break 124 with respect to the available stop distance and the current speed of the of the ceiling-stand carriage 12. As a result, the ceiling-stand caniage 12 can be smoothly, nearly vibration-free and exactly stopped at the triggering position Bx, without any unnecessary efforts for the user.
- the signal transmitter 125 is driven by the control unit 122 in such a way that it generates an intermittent signal tone for example.
- the brake 124 is not activated and the ceiling-stand carriage 12 can thus be pushed through the window A-C.
- the signal tone is switched off again.
- the purpose of the different signal tones being generated is to give the user an audible indication that the ceiling-stand carriage 12 is close to a triggering position Bx and will or will not lock into place in this position.
- the width of the window may for example be selected in such a way that, by accelerating or slowing down the speed of displacement of the ceiling-stand carriage 12 once it has entered the window, the user can decide whether or not it is to lock into place in the triggering position.
- the markings M already explained at the triggering position or positions Bx and at a reference position on the ceiling-stand carriage 12 are used to make the location of the carriage 12 relative to the triggering positions Bx easier to see.
- a visual signal may be given, for example by a number of LED's laid out in a row that, by being activated, indicate the instantaneous position of the ceiling-stand carriage 12 relative to the triggering position or positions and their windows.
- the triggering positions are determined and stored before the X-ray system is put into operation for the first time.
- for further triggering positions to be stored in the control unit 122 if for example the software is operated in a learning mode.
- the ceiling-stand carriage 12 is once again moved manually to a desired triggering position and the distance between the position and the wall W is then determined and, together with an appropriate window, is stored, in the manner described above.
- the software is also preferably so designed that the width of the windows and the nature of the audio and/or visual signal generated can be set by the user.
- Figs. 2 to 4 show examples of linear movements of this kind and various pivoting movements that take place in an X-ray system.
- Fig. 2 is a diagrammatic view from the side of the directions and axes in, along and about which movements of this kind have to be performed in a ceiling stand and a floor stand.
- Fig. 3 is an enlarged view showing the possible directions of movement and axes at a patient table 3. These are firstly the pivoting movement already mentioned (alpha 2) of the top 32 about the horizontal Y2 axis and a linear movement of the top 32 in the vertical direction along the Z2 axis. Also, the film cassette 31 is generally mounted to be shiftable (moveable) in the plane of the table, i.e. in the Y2 and X2 directions. Finally, what may even need to be considered is a pivoting movement (beta 2) of the top 32 of the table about the vertical Z2 axis.
- Fig. 4 shows a wall stand that for example holds a film cassette 31 for a standing or seated patient.
- the film cassette 31 has to be capable of being moved in the vertical direction along the Z3 axis and, generally, also in a direction perpendicular thereto along the Y3 axis. For certain examinations it may also be necessary for the film cassette 31 to be pivoted out of the vertical through an angle alpha 3.
- the X-ray generator (not shown in Fig. 4) may in this case be directed onto the patient with the ceiling stand shown in Fig. 1.
- the X-ray generator 2, 21 shown in Fig. 1 is so mounted that it can be pivoted to the side through substantially 90°.
- the principle according to the invention as described above can be applied to all these movements.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004558947A JP2006508761A (en) | 2002-12-06 | 2003-12-04 | X-ray system |
US10/536,921 US7165885B2 (en) | 2002-12-06 | 2003-12-04 | X-ray system |
EP03812630A EP1569557A1 (en) | 2002-12-06 | 2003-12-04 | X-ray system |
AU2003302877A AU2003302877A1 (en) | 2002-12-06 | 2003-12-04 | X-ray system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP02102694 | 2002-12-06 | ||
EP02102694.3 | 2002-12-06 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004052207A1 true WO2004052207A1 (en) | 2004-06-24 |
Family
ID=32479793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/005627 WO2004052207A1 (en) | 2002-12-06 | 2003-12-04 | X-ray system |
Country Status (6)
Country | Link |
---|---|
US (1) | US7165885B2 (en) |
EP (1) | EP1569557A1 (en) |
JP (1) | JP2006508761A (en) |
CN (1) | CN1720003A (en) |
AU (1) | AU2003302877A1 (en) |
WO (1) | WO2004052207A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007136201A (en) * | 2005-11-22 | 2007-06-07 | Siemens Ag | Method and instrument for x-ray diagnosis of object to be examined |
JP2008506442A (en) * | 2004-07-13 | 2008-03-06 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | X-ray apparatus and method for controlling the x-ray apparatus |
US8281906B2 (en) | 2008-05-30 | 2012-10-09 | Siemens Aktiengesellschaft | Braking apparatus |
CN105919671A (en) * | 2016-05-13 | 2016-09-07 | 李光磊 | Surgical operation auxiliary device |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100979400B1 (en) * | 2006-01-11 | 2010-09-01 | 퀄컴 인코포레이티드 | Communication methods and apparatus used in the absence or presence of beacon signals |
CN100512759C (en) * | 2006-04-13 | 2009-07-15 | Ge医疗系统环球技术有限公司 | Table equipment identifying method and medical imaging equipment |
JP4848993B2 (en) * | 2007-03-29 | 2011-12-28 | 株式会社島津製作所 | Manual overhead traveling suspended X-ray tube holding device |
WO2009104318A1 (en) * | 2008-02-22 | 2009-08-27 | 株式会社 日立メディコ | Mobile x-ray apparatus |
DE102008049897B4 (en) * | 2008-10-03 | 2010-09-16 | Metso Lindemann Gmbh | Use of a brake |
DE102009057717B4 (en) | 2009-12-10 | 2014-10-30 | Siemens Aktiengesellschaft | Brake car with brake gap correction |
US8755492B2 (en) | 2010-10-06 | 2014-06-17 | Samsung Electronics Co., Ltd. | Radiographic apparatus and control method thereof |
US9757080B2 (en) * | 2010-10-06 | 2017-09-12 | Samsung Electronics Co., Ltd. | Radiographic system and control method thereof |
KR101417780B1 (en) | 2010-10-06 | 2014-07-09 | 삼성전자 주식회사 | Radiographic apparatus and method for moving the same |
KR20130057653A (en) * | 2011-11-24 | 2013-06-03 | 삼성전자주식회사 | Medical imaging apparatus |
WO2013093984A1 (en) * | 2011-12-22 | 2013-06-27 | 株式会社島津製作所 | X-ray imaging apparatus for hospital rounds |
CN103222878B (en) * | 2012-01-30 | 2017-03-01 | Ge医疗系统环球技术有限公司 | A kind of breast photograph shelf |
JP5978060B2 (en) * | 2012-08-09 | 2016-08-24 | 株式会社日立製作所 | X-ray equipment |
JP2015167603A (en) * | 2014-03-05 | 2015-09-28 | コニカミノルタ株式会社 | Imaging stand |
WO2015167164A1 (en) * | 2014-04-29 | 2015-11-05 | Samsung Electronics Co., Ltd. | Radiographic system and control method thereof |
US10271802B2 (en) * | 2014-08-12 | 2019-04-30 | Carestream Health, Inc. | Digital x-ray imaging apparatus and method |
CN105816314A (en) * | 2016-05-17 | 2016-08-03 | 赵建国 | Myocardial infarction treatment device used in cardiology department |
CN106725578A (en) * | 2016-11-25 | 2017-05-31 | 韩庆亮 | A kind of Cardiological emergency monitoring diagnosis and treatment apparatus |
CN106725557B (en) * | 2017-01-19 | 2021-01-08 | 上海联影医疗科技股份有限公司 | X-ray imaging apparatus and control method thereof |
KR102684922B1 (en) | 2018-05-25 | 2024-07-16 | 홀로직, 인크. | Compression arm device and method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0373596A1 (en) * | 1988-12-13 | 1990-06-20 | Kabushiki Kaisha Toshiba | X-Ray tube support apparatus |
WO2002032366A2 (en) * | 2000-10-16 | 2002-04-25 | Ge Medical Systems Global Technology Company, Llc | Medical table brake |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10051370A1 (en) * | 2000-10-17 | 2002-05-02 | Brainlab Ag | Method and appliance for exact positioning of patient for radiation therapy and radio surgery with which only one camera is used to determine and compensate for positional error |
-
2003
- 2003-12-04 EP EP03812630A patent/EP1569557A1/en not_active Withdrawn
- 2003-12-04 CN CNA200380105173XA patent/CN1720003A/en active Pending
- 2003-12-04 US US10/536,921 patent/US7165885B2/en not_active Expired - Fee Related
- 2003-12-04 WO PCT/IB2003/005627 patent/WO2004052207A1/en active Application Filing
- 2003-12-04 JP JP2004558947A patent/JP2006508761A/en not_active Withdrawn
- 2003-12-04 AU AU2003302877A patent/AU2003302877A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0373596A1 (en) * | 1988-12-13 | 1990-06-20 | Kabushiki Kaisha Toshiba | X-Ray tube support apparatus |
WO2002032366A2 (en) * | 2000-10-16 | 2002-04-25 | Ge Medical Systems Global Technology Company, Llc | Medical table brake |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008506442A (en) * | 2004-07-13 | 2008-03-06 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | X-ray apparatus and method for controlling the x-ray apparatus |
US7654739B2 (en) | 2004-07-13 | 2010-02-02 | Koninklijke Philips Electronics N.V. | X-ray equipment and method for controlling it |
JP2007136201A (en) * | 2005-11-22 | 2007-06-07 | Siemens Ag | Method and instrument for x-ray diagnosis of object to be examined |
US8281906B2 (en) | 2008-05-30 | 2012-10-09 | Siemens Aktiengesellschaft | Braking apparatus |
CN105919671A (en) * | 2016-05-13 | 2016-09-07 | 李光磊 | Surgical operation auxiliary device |
Also Published As
Publication number | Publication date |
---|---|
CN1720003A (en) | 2006-01-11 |
AU2003302877A1 (en) | 2004-06-30 |
JP2006508761A (en) | 2006-03-16 |
US20060126795A1 (en) | 2006-06-15 |
EP1569557A1 (en) | 2005-09-07 |
US7165885B2 (en) | 2007-01-23 |
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